First of all, sorry for my bad english. I'll try to make my problem clear.I've recently purchased a Wacom Intuos Pro Small, I've installed it following every step, uninstalled the previous drivers and repeated this process several times. I've always used Paint Tool Sai and it worked perfectly with my old tablet (a very old model, CTF-420) but with the new one, it randomly lose pen connection or something like that. I think that it only happens with the "pen" tool on the linework layer, because the other tools seems to work. So, the problem is that every two strokes approximately the tablet pen stops working for about 30 seconds, I can move the cursor but I can't select anything or draw. It is very frustrating. This is my second tablet in a month, because I had the same problem with the previous one (an Intuos Comic Medium) and I thought the tablet pen was broken, but now I've realised that it is a compatibility problem or something about Paint Tool Sai, because the Intuos Pro works fine in Photoshop (not perfect, though).Searching on the Internet for a solution, I've read a lot of posts about pen-pressure problems, but anything like mine. Paint Tool Sai recognizes my pren-pressure.I don't want to change my drawing software now that I've learnt to use Sai, so I hope someone can help me with this (and thank you for reading so far).